For the parent who is too cool for lullabies (or sick to death of them), this company has converted your favorite rock songs into sleep-inducing tunes for tots. They're even kinda cool if you just want something mellow playing the...For the parent who is too cool for lullabies (or sick to death of them), this company has converted your favorite rock songs into sleep-inducing tunes for tots. They're even kinda cool if you just want something mellow playing the background as they lack that cloying quality which makes you want to scream.